That's a Canpotex potash empty headed back to Saskechewan via UP's Spokane Int'l and CP's Crows Nest Line. I've paced trains thru here at 90 powered by DDA40Xs and "Fast Forty" SD40-2 snouts in the good old days; today, 70's the limit. The entire railroad thru the Gorge was rebuilt by the Army Corps of Engineers in the 1950s and 60s for hydro dam projects, and the new line is very fast east of The Dalles.